Colorectal cancer
Supplements studied for colorectal cancer.
Overview
Colorectal cancer supplement evidence varies by agent and endpoint. Calcium 1200–2000 mg daily for several years may lower colon cancer and adenoma risk in some populations, particularly with adequate vitamin D. Vitamin E supplementation has not clearly reduced colorectal cancer risk in larger trials despite early signals.
Black and green tea associations with lower risk appear in some observational research but are inconsistent in interventional data. Soy foods may correlate with lower risk in Asian cohorts, though nattokinase or soy protein supplements lack clear anticancer trial evidence. Probiotics are marked possibly effective without detail here. See the heatmap and evidence reviews below.
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SupplementDEX Database
22 supplements for , and rated at least stars. All purchase bands. No minimum star filter.
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